Diagnosis

Your doctor will ask about your symptoms and medical history. A physical exam will be done. Tests to confirm strep throat may be used and include:

Rapid antigen strep screen—Antigens are a part of the body's immune response to specific infection. This test can identify antigens within a few minutes of the test. However, a negative test does not mean you do not have strep throat (this is called a false negative).

Throat culture—A sample of throat fluid is taken to a lab to see if strep bacteria grows. It takes a few days to gets results.

Rapid DNA test—DNA technology is used to detect strep throat. The results are usually available in one day.

Only a rapid DNA test or throat culture can confidently distinguish strep throat from throat infections with other causes. Doctors will often make a diagnosis and decide about treatment based on symptoms, physical findings, and test results.

Treatment

Most sore throats, including strep throat, will get better on its own in 7-10 days. Although the sore throat disappears, the infection may remain. It is important to follow through with proper treatment to prevent serious complications.

Medications

Your doctor will prescribe antibiotics to treat the infection. Antibiotics may be given as a pill or a shot. Symptoms will often fade in the first few days of medication, but it is important to take all of the antibiotics as prescribed.

Revision Information

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.